Math Problem Statement

The equation y = 14x represents the number of pages Printer A can print over time, where y is the number of pages and x is time in minutes. This table shows the number of pages Printer B can print over time.

How many pages does each printer print per minute, and which printer prints at a faster rate?

Select from the drop-down menu to correctly complete the statements.

Printer A prints Choose... pages per minute. Printer B prints Choose... pages per minute. The printer that prints at a faster rate is Printer Choose... .

Printer B Time (min) Pages Printed 3 48 5 80 8 128 12 192

Solution

Let's calculate the rate at which each printer prints pages per minute.

Printer A:

The equation given is y=14xy = 14x, where:

  • yy is the number of pages printed.
  • xx is the time in minutes.

From this equation, Printer A prints 14 pages per minute, because the coefficient of xx (which is 14) represents the rate.

So, Printer A prints 14 pages per minute.

Printer B:

To find Printer B's printing rate, we need to calculate the number of pages printed per minute from the table.

We will use two points from the table to determine the rate:

  • When x=3x = 3, y=48y = 48.
  • When x=5x = 5, y=80y = 80.

Now, calculate the rate of change (pages per minute): Rate=ΔyΔx=804853=322=16 pages per minute.\text{Rate} = \frac{\Delta y}{\Delta x} = \frac{80 - 48}{5 - 3} = \frac{32}{2} = 16 \text{ pages per minute}. So, Printer B prints 16 pages per minute.

Comparing the rates:

  • Printer A prints 14 pages per minute.
  • Printer B prints 16 pages per minute.

Thus, Printer B prints at a faster rate.

Final answers:

  1. Printer A prints 14 pages per minute.
  2. Printer B prints 16 pages per minute.
  3. The printer that prints at a faster rate is Printer B.

Would you like more details or have any questions? Here are some related questions to explore:

  1. How do you interpret the slope of a linear equation in a real-world context like this one?
  2. What would the graph of y=14xy = 14x look like in terms of pages printed over time?
  3. How can you calculate the rate of change from a table of values?
  4. How would Printer A's rate change if the coefficient in the equation was doubled?
  5. What is the significance of the y-intercept in problems like this?

Tip: When given data in a table, you can use any two points to calculate the rate of change, which helps in finding the slope for linear relationships.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Rates of Change
Slope

Formulas

y = mx (Linear equation in slope-intercept form)
Rate of change = Δy / Δx

Theorems

Slope-Intercept Form

Suitable Grade Level

Grades 6-8